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卢氏县冬季异常气候分析
Analysis of Winter Anomaly Climate in Lushi County
【摘要】 利用异常度的概念对卢氏1960-2005年冬季气候进行分析,建立了冬季异常气候(干湿冷暖)划分标准,并根据天气气候学原理对形成干湿冷暖异常冬季气候的平均环流形势、副高特征、ENSO事件等进行分析,结果表明:卢氏46 a来冬季气温从持续偏低到持续偏高的年际变化周期,与副高的强弱年际变化相对应。冷(暖)冬前期夏季副热带高压持续偏强(弱),到秋季转为持续偏弱(强)。在EL Nino事件期间常出现暖冬和湿冬,而LA Nina事件期间常伴随冷冬。
【Abstract】 Using the concept of abnormality,we carry on the analysis of winter climate in Lushi country during 1960-2005,establish the winter anomaly climate(dry,wet,cold and warm) classified standard.We also analyze the average circulation situation,the subtropical high characteristic,the ENSO event and so on according to the weather climate principle.The results show the interannual change cycle of Lushi winter temperature from the low side to the continued high for 46 year is corresponds with the subtropical high interannual change.Summer subtropical high of cold(warm) winter earlier period continues to be strong(weak),while it continues to be weak(strong) in autumn.In EL Nino event period often presents the warm winter and wet winter,but LA Nina event period often follows the cold winter.
【Key words】 climatic anomaly; interannual change; characteristic; subtropical high; ENSO;
- 【文献出处】 气象与环境科学 ,Meteorological and Environmental Sciences , 编辑部邮箱 ,2009年S1期
- 【分类号】P467
- 【被引频次】5
- 【下载频次】57